My site has been selling M4g discs since 4/10. They are only marked with the weight and M4 in either plastic, no G mark! It is obviously different plastic by the feel. Technically, they are 400g plastic and everything else officially out is 400 series. Proto or First Run stamp has no effect on series. By the way, PA1 and PA4 putters are being shipped out today to those that preordered!

We have the ones at Disc Nation and affiliates. Prodigy originally told me "yes those are 400G" but when I clarified they had no G marking, I was told that the original proto runs were not actual G plastic. So its kinda cloudy, because yes the M4 feels like different plastic than the other 400S. It could be a mix, or the original run of 400G, only they know. But I was told it is not considered 400G if it doesn't have the G on it.

Nothing personal by that to what you are selling. This is my nerd hat talking, not my DN paycheck